scripts/rt-patch-version.sh

   1 #!/bin/sh
   2 # SPDX-License-Identifier: (GPL-2.0-only OR LGPL-2.1-only)
   3 # SPDX-FileCopyrightText: 2016-2018 EfficiOS Inc.
   4
   5 # First argument is the path to the kernel headers.
   6 KPATH="$1"
   7
   8 VERSIONFILE=""
   9
  10 if [ -f "${KPATH}/localversion-rt" ]; then
  11         VERSIONFILE="${KPATH}/localversion-rt"
  12
  13 elif [ -f "${KPATH}/source/localversion-rt" ]; then
  14         VERSIONFILE="${KPATH}/source/localversion-rt"
  15 else
  16         echo 0
  17         exit 0
  18 fi
  19
  20 RT_PATCH_VERSION=$(sed -rn 's/^-rt([0-9]+)$/\1/p' "${VERSIONFILE}")
  21
  22 if [ "x${RT_PATCH_VERSION}" = "x" ]; then
  23         echo 0
  24         exit 0
  25 fi
  26
  27 echo "${RT_PATCH_VERSION}"